Car-roof with interlocking frame.



P. BATEMAN.

CAR ROOF WITH INTERLOCKING FRAME.

APPLICATION HLED lULYv28| I9l4. Aug. 20,

PAUL BATEMAN, or wnnsrnn eaovns, ivrrs'sounr, essrenon TO AMERICAN CAR Ann FOUNDRY corrrnny, or sr. LOUIS, nrssonnr, a co aronarron or NEW JERSEY.

onn-noorwrrn n rnnnoonrne FRAME 76 31 Sp i o oflettersletent Patented A ng. 2@,t918.

Application filed July 2a, 1914. se iai no; 353,708.,

To all whom it may concern:

Be it known that'I, PAUL BA'rnMAN, residing at Webster Groves, Missouri, and being a citizen of the United States, have 111,- vented certain new and useful Improvements in Car; Roofs with Interlocking Frames, of which the following is a full, clear, and exact description, such as will enable othersskilled in the art to which itappertains to make and use the same, reference being had to the accompanying drawings,

which illustrate the preferred formof the invention; though it is to beunderstood that the invention is not limited to the exact details of construction shown and described, as it is obviousthat various modifications thereof will occur to persons skilled in the art.

In said drawings: 7

Figure 1 isa sectionalview taken transversely through the carline showing part of a ridge pole or purlin interlocking there with. V

Fig. 2 is; a side elevation'of part of a carline, the penetrating and interlocking ridge pole or purlin being shown in section.

Fig. 3 is a side elevation of the notched part of the purlin; and,

Fig- 4 is a side elevation of the apertured part of the carline.

Railroads in general require in their rolling stock equipments, cars which possess maximum inside dimensions. All cars are limited in height bythe roofs of the tunnels through which they pass and the fioorsof bridges and viaducts under which they run,

and freight cars are particularly limited in this respect, as they are interchanged and run over many. roads. They must, there fore, conform to the extreme limitations of l all of the roads.

Usually the carlines of a car are positioned either above or below the ridge pole and purlins, or the latter are inset in carlines, which to have the proper strength have a considerable depth, in each instance materially'decreasing the available inside height of the car. 7 f

It is one of the purposes of my invention to construct the ridge pole, purlins and carlines of a material, such as steel, as will permit these members to have minimum dimensions commensurate with the requisite strength. V

Another object is to cause the ridge pole Referring to the drawings, 1 represents a carline, illustrated as an I-beam, provided with an opening 2 substantially conforming to the contour of a purlin 3, which maybe a standard T. The upper portion 2 of opening 2 in carline 1 is of greater area than is necessary to admit the flanges of the T-bar forming the purlin 3, and the lower portion 2 of said opening, best shown in Fig. 4, is in the form of a relatively narrow slot.

At points intersecting with the carlines, each purlin 3 is provided with a notch 4 in the depending or Vertically disposed leg 5 thereof.

The purlin 3 is threaded through opening 2 in the carline 1, and, in the assembling process, said purlin, during the greater part ofits insertion through the carline, practically fills the opening 2 in the latterexcept of opening 2 in carline 1. I

With the parts so arranged, the under inclined sides of the horizontal leg of purlin 3 may bear against the-inclined portions of the outline of opening 2, and shoulders 5 of notch 4 lap the bottom flange of the I-beam constitutingthe carline 1.

Secured to web 5 or purlin 3,-as by a rivet 6, is a retaining clip 7, comprising a back plate 8, flanges 9 and-a rib-strengthened horizontally disposed foot 10, the latter adapted to project underneath the bottom flange of carline 1.

The horizontal leg of the purlin 3 is adapted to support a roof sheet 11, which is crimped' and has a. vertical portion arranged to lie against the web of carline l and the under inclined surface of the top flange thereof. The upper surface of the top flange of said carline is adapted to support a washer 12, through which extends a bolt 13 which may serve for attaching a running board or other device to the roof frame. Said washer is inclosed and may be positioned by a cap 14, which is preferably continuous and also serves to inclose the edges of adjacent roof sheets.

N hen the parts are entirely assembled, edge 5 of the web of the T-shaped purlin 3 and foot 10 of retaining clip .7 prevent any relative vertical movement between the carline 1 and purlin 3. Transverse movement between these members is precluded by shoulders 5 of notch 4L, which, as state-d, lap the bottom flange of carline 1, and by the vertical walls formed by the opening 2 in said carline.

It, therefore, is seen that my roof structure is easily assembled or taken apart, and that it requires little shop treatment, is securely held against displacement and provides a construction which possesses space-saving qualities, reliability and is of relatively low cost. a i

What I claim is 1. In a roof, a flanged carline provided with a T-shaped perforation, a notched purlin of 'T-shape section adapted to pass through said perforation, the horizontal leg of the perforation being wider than the horizontal leg of said purlin, said purlin by reason of its notch and the horizontal leg of said perforation being adapted to assume an interlocking relation with said carline, and a retaining clip secured to said purlin and opposing movement of said carline for maintaining the lower edges of the carline and purlin substantially coincident.

2. In a roof, an I-shaped carline provided with a T-shaped perforation, a notched purlin of T-shaped section projecting through said perforation, the horizontal leg of the latter being wider than its own vertical leg and the horizontal leg of said purlin, said purlin by reason of its notch and the hori zontal leg of the perforation being adapted to assume an interlocking relation with said carline, and a retaining clip secured to said purlin and projecting beneath said carline to maintain a relatively flexible connection between the purlin and the carlines 3. In a car roof, carlines composed of I beams having T-shaped openings in the webs thereof, in combination with T-shaped purlins passing through the openings in said carlines, the webs of said purlins being notched to inclose the lower flanges of said carlines, a roofing sheet having a portion'extending between the carline and'the purlins and a locking block riveted to said purlins and having a portion extending beneath said carlines to maintain said carlines and purlins in interlocked relation with the lowermost portions of the carlines and purlins substantially coincident.

4. In a car roof, carline members composed of I-beams having T-shaped openings in the webs thereof, in combination with T-shaped purlin members passing through the openings in said carlines with the flanges of the purlins uppermost to form support-s for roofing sheets and with the flanges of the purlins resting on the webs of the carlines, the webs of said purlins being notched to inclose the lower flanges of said carlines in such manner that the lower flanges of the carlines and the lower edges of the webs of the purlins are substantially coincident, a locking block riveted to one of said members and in engagement with the other of said members to maintain the upper flanges of the carlines above and spaced apart from the upper flanges of the purlins, said members being flexibly secured together by said locking block.

In witness whereof I have hereunto set my hand in the presence of two witnesses.

PAUL BATEMAN. Witnesses:

OSCAR HooHBERG, RODNEY BEDELL.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G." 

